How should you prepare to adjust slack adjusters if they are moving more than the specified limit?

When preparing to adjust slack adjusters that are moving more than the specified limit, it is crucial to ensure that the vehicle is safely parked and secure. This is essential for several reasons. First, working on a vehicle that is not secure poses a significant safety risk to both the technician and any bystanders. A secure vehicle prevents unintended movement, which could lead to accidents or injury while adjustments are being made.

Additionally, adjusting slack adjusters typically involves working underneath or around the vehicle. Having the vehicle securely parked on level ground, with the engine off and the parking brake engaged, ensures a stable environment for making those adjustments. This allows the technician to focus on the task without the distraction of worrying about potential vehicle movement.

Inadequate loading or air pressure adjustments, or even driving at low speeds to assess performance, do not directly contribute to the safe and effective adjustment of the slack adjusters. Ensuring safety first is the priority before making any mechanical adjustments.